Re: Crazy Barry
Posted by
Chris in Tampa on 7/12/2019, 9:02 pm
About two hours ago The Weather Channel mentioned a northern swirl earlier that was either rotating around, or out of, the mean center. I haven't had a chance to follow Barry closely. I haven't compared where the NHC puts the center compared to the convection.
NHC talked about a mean center in the 4pm CDT discussion. Part of it:
"Although the storm continues to look disorganized in satellite
imagery, surface observations and data from an Air Force Reserve
Hurricane Hunter aircraft indicate that the central pressure has
fallen to 993 mb with the maximum winds still near 55 kt. A
prominent cloud swirl has rotated more than halfway around the
eastern and northern side of the mean center since 17Z, and there
were several reports of strong winds in association with this
feature. Strong convection persists to the south of the center, but
to this point northerly shear has prevented the convection from
becoming better organized."
From: https://www.nhc.noaa.gov/text/refresh/MIATCDAT2+shtml/
As for water on land aiding a storm, it has happened before, including in places other than the Everglades. Erin for example:
https://en.m.wikipedia.org/wiki/Tropical_Storm_Erin_(2007)
See:
https://en.m.wikipedia.org/wiki/Brown_ocean_effect
I don't know if the conditions are right for this storm to do something similar. Since the problem with this storm is more related to rain than wind, I don't know how rainfall is impacted. With a lot of water on the ground the storm might keep its intensity a bit higher futher inland if we are talking about wind and general organization as it relates to a tropical cyclone, but is the same true of rain? Does more water on the ground mean it can produce more rain? If talking about that, I don't know. But I did just notice from Wikipedia that this link at Nasa talks about the possibility of increased rainfall when this effect is observed:
https://www.nasa.gov/content/goddard/brown-ocean-can-fuel-inland-tropical-cyclones/ |
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7/12/2019, 2:54 pm Post A Reply
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